Unable to scan on Canon Color ImageClass MF743cdw
When trying to scan from a Canon Color Imageclass MF743cdw I get an error message "The operation could not be completed (com.apple.imagecapture error 4294957375.) (-9921).
Download the appropriate drivers for this device from the Canon macOS 12 display page. In particular, there is an Aug 31, 2022 scanner driver that may improve things for you.
This device is also supported by Apple's built-in AirPrint drivers, and there would be no need to download anything from Canon. You would just remove and re-add the networked device in System Preferences > Printers & Scanners panel, choose the Bonjour discovery line for the device which would then activate the defaults for the Use: driver selection, and then re-add the device. Apple's Image Capture should discover it.